Salve. Interessante confronto: http://blog.safe.com/2012/08/round-earth-data-in-oracle-postgis-and-sql-server/ Saluti. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario